Guard



Nov. 3, 1931.

W. S. FREEBURG GUARD Filed Sept. 20. 1928 2 Sheets-Sheet l WALTER S. FREEBUBG,

gnaw/M 3 I] I i/ Q)! 344/ 24 Nov. 3,- 1931. w. s. FREEBURG GUARD Filed Sept. 20, 1928 2 Sheets-Sheet 2 nil f0 l W 0 m Patented Nov. 3, 1931 UNITED.

nnreu rx-orri I WALTER s. .FREEIBURG; or yi/[ILWAU r s;Wisconsin,*nssrencit)Jar= .MESNE ASSIGNF 5 MENTS, or ONE-HALF :To 'LYNDE'BRADLEPAN 'oimqmnr. T0 HARRY LJBRADLEYfl Born or MILWAU EEW T" GUARD- Application. filed.2Septemher.i20,ii1928. Serial .No. 307,261.;

This 1 invention, relates; particularly L to. guards for punchqpresses -.and.thelike.and has; as a primary object thel-provision zof-a guard which is fully adjustableitoimeet the r requirements ofvarious types of work.

Another object of thisinvention resides in r the provisionoi', a guard ofthecharacter -de.-.-i

scribed which totally; encloses theej aws of. a punch press or the like during. operationxloutt may .be a readily swung out 0t positiomto. permit access to the dies thereof for repairer.

replacement.

A further objectofgthis ;inventi0n.;iresides in: the provis on ota guard.- ofathe charactem describedl aving gate members at,-,1,ts-.,sides; and-front which arereadilyadjustable o be; entirely closed or to. permit the, insertion, of 1 various sizes of work.

And a still further'objectxii-this invention resides in ;the provision of ,a ;guard: of; the; character-described .whichz-is ruggedly, con-1 structed, is simple in; design andwhich;- may be;{ readily applied to any punch PI'QSSgOI the: H e

l With theaboveendqother ObjBGtSsi'ILrNieWr which ;willappear; asz. the description. Prom ceeds, my invention resides in the novelicon-i struction, 1 combination and arrangementrof parts substantially ashereinafter:described; and more particularlyndefined' ;by.--1th'e zap-.1; pended claims; it being understood; thatlsuch; changes in the: precise embodimentszofxthe; hereindisclosed. invention may be; made-ease come within'thescope of'the claims:

In theaccompanying drawingsyl haveril.-.;- lustrated one complete example of the-Phys? ical embodiment of my invention constructed according to the best mode 1 have SO farLdevised for the practical applicationorg-the principles thereof, and inwhich 1" Figure 1 is a front view of a portiorrof a punch press with my improved; guard see. cured thereto;

Figure 2 is a perspective view. otthe'; guards removed from thepress v Figure 3 is a fragmentary, secti0nal view. taken through Figure 2 on the plane of line. 3-3, and 4 Figure 4 is a frag-mentary sectional :view

taken. through Figure. 2 .on. the. plane of line- 1 als-tdesignate'like:partsthroughoutthe several views, 5 represents a punch. press orthe likeihaving guide-ways 6 anda movabl'eiram, or -plunger 7 adapted to .be. moved. longitudi-j nally. inthe guide ways.byaneccentricjstrap 8 actuated-by anseccentric, not...shown, car.-.

ried Joya shaft l9whichis drivenin anylsuitrz able mannerthrough a drive pulley ltl. As. is; customary, the. ram or plunger. 7 carries'a movabledie. l1 whichcooperates with a sta tionary die, not s'liown,gcarried by the .basel2. 653

OithQPIEQSER Themimproved: guard .isI.secured .to. the guide ways of thejpress orany other suitable portion thereof and. includes .a substantially.- U shapedtrame member 13 having-sides 14 and a front.15,,.one side member 14L having. a hingemelnberelfir secured theretonby. screws. 17 or the like -:;Wl1l0h .is ,pivotally, connected with. second hinge member 18, adapted to. be secure dito one sideof .thepress- -The end. ofthe other side arm. lL'has a member 19.; eX-. tendedtherefrom provided with; an ,aper.-.l tured portionz20whichis: arranged-to receive a. stud, 21 carriedl'zby an; attaching plate 22.1

secured tothe adjacent'guide-way 6 of. the. 80,}

press bycapscrews orthe. like 23. The aper.-.. turedmeinber20 also has. a slot- 24 communie eating with the aperture therein. through; which a bolt.25 .carried by the studQl passes as. ,the, memb.er. 20;.is engaged withfthe stand, 3

a .wing nut 26 threaded on the ,bolt. providing: means for clamping .memberQO to, the .studto.

. secure the,.frame of the guard in itsgclosed position.

Extended downwardly. from the corners of .theiframe 13.are;a plurality ,of fixed rods.

27 the lowenends of which. havelright angu-r larshapedmembers 28. secured thereto which? I preferably engage the surfaceof the base-12E oflthe press. whenthe guard is ,closed. 1 .The 5 inner ends of the right angular. shapedmem-t bers 28, are spaced apart-at the front. of the guard. and their. outer ends-terminate short of the endsofi the sidestlgthe space between the, members 28;;at the. front being closed by.

a gate member 29 and the spaces at the sides being closed by side gates 30.

The gates 29 and 30 are substantially identical except as to length and each include a.

supporting cross bar 31, the outer ends "of which are apertured to freely slidably receive the adjacent outermost upright bars 27. Carried at each end of the bar 31 and in align-, ment are bearing blocks 32 having apertures 33 in which a rod 34 is adjustably rotatable, rotation of the rod 34 being restrained by slotting the bearing members 32 and provid;-;

ing wing nuts 35 to frictionally bind the shaft 34 in the apertures33. I The rod 34'is:

provided with a pluralityof spaced apertures in'wliich bars 36 are freely slidably mounted,"- the ends of Which are fixed in longituc linal' as hereinbefore described and the vertical position of the gate properwith respect to the rod 34 is mainpai'ned by a clamping arrangement illustrated in figure 4. "'lheiclamping means consists of strengthenlngsleeves 38 fixed LO the rod 34 at spaced points and apertured, as at 39, in alignment withone of the apertures through which a rod 36 passes.

The rod 34 and each strengthening sleeve 38 are transversely bored, asat 40, in communication with the aperture 39 in the sleeves and the apertures in the rod 34 through which the bars '36 pass/to receive studs 41. fThe studs'41 are likewise apertured, as at 42, in alignment Wl'ih the'apertures 39, to permit the rods 36topass th'erethrough, andtheouter end" of the suds is reduced and threaded, as at 43, to receive a wing nut44'. As the outer end45 of the major portion of the stud terminates short of the adjacent face of the strengthening sleeve 38 against which'the Wing nut abuts, pressure applied by the wing nut tends to draw the stud 41 through the transverse bore 40 and bind the adjacent rod 36 against longitudinalmovement. 1

The space above the bar 31 is closed by a plurality of vertical bars 46, the lower ends of which are fixed in the member 31 and the upper portions of which are slidable in'apertures in the front bar 15 of the frame member 13. A locking member, as illustrated in Figure "3, releasably secures the member 31, together with the plurality of vertical bars 46 an d likewise the gate member 29, in adjusted vertical position. This locking means is on the same order as that shown in Figure 4 and includes a bore 47 extended transversely through the front portion 15 of the frame and in communication with-the medial aperture through which one of the bars 46 passes to mount a stud 48 which is apertured, as at 49, to permit the medial bar 46 to pass therethrough. The reduced end 50 of the stud like Wise receives a wing nut 51 and tightening thereof binds the rod against longitudinal movement and thus secures the gate assembly in adjusted position. I f

Theside gates 30 aresubstantially identical to thegate member 29 previously described except that their member 31 is slidable on only one'vertical rod 27,.and as thegatesf30 "are relativelylshorter than the gates39 only one lockingme'ans is'provi'ded' toadjust the longitudinal position thereof.

From the foregoing description taken in connection with the accompanying drawings it will be readily apparent to those skilled in the art towhichan invention-of this character'ap'pertains that I provide a guard which maybe arranged 'tocompletely enclose the dies of a punch press or Tthelike to prevent access thereto but at the same time permit an unobstructed view of the die, and which may bearranged to permit material of various sizes-tobe fed thereto either from the side'sorthe front of the press and one which maybe readily openedto'permit-access to the di s '1 N r H I claim:

1 1. A-guard for punch presses-and the like, comprising a frame member, fixed bars carried by the frame member-and spaced apart to provide a space through which; material may befed'tothe press,-movable bars carried' by the frame member between the fixed bars, anda 'gate member carried by the movable bars and cooperating therewith to-adjustably close the space between the fixed bars.

J2. In a guard for punch presses andthe like, a frame member, bars vertically slidable in the frame member, a cross bar carried-by said bars, arod member rotatably mounted from said'cross bar, and: a; gate member carried by the rod an'd-adjustabletherein.

In a guard for punch presses and .the like','a frame member,--bars vertically slidable in the framemember, 'a cross bar carried 'by said bars, a rod member rotatably mounted: from said cross bar, and aflgate member carrieda by the rod and adjustable angularly by rotation of .the rod and verticallyby movement thereof with respect to the rod. 11 j a.

4.. In a .guardforpunch. presses and the like, a frame member provided with a plu- *5. In a"guard for punchpresses andthe like, a frame member, a plurality of spaced bars vertically slidable in the frame member, means connecting the bars, and a gate member connected with the bars and adjustable with respect thereto.

6. In a guard for punch presses and the like, a member adapted to be connected with a press and having sides and a front, a plurality of bars slidably connected with the member to partially close the sides and front, and gate members adjustable with respect to the slidable bars to complete the closure.

7 In a guard for punch presses and the like, a substantially U shaped frame member adapted to be connected with a press. fixed bars carried by the member and closing a portion of its sides and front, sets of spaced bars slidably connected with the member at its sides and front to cooperate with the fixed bars to complete the guard, and adjustable gate members carried by the sets of slidably'mounted bars.

8. In a guardfor punch presses and the like, a frame member adapted to be connected with a press, fixed bars carriedby the frame member and spaced apart to provide a space through which material may be fed to the press, a plurality of bars vertically slidably connected with the frame member, and a gate member carried by and angularly adjustable with respect to said pluralityof slidable bars, the slidable bars and the gate member closing the space between the fixed bars. I

In testimony whereof I have hereunto affixed my signature.

WALTER S. FREEBURG. 

